Pneumatic grain-elevator



No. 606,885. Patented July 5, I898.- l. BROG'AN.

PNEUMATIC GRAIN ELEVATOR. (Appliczition filed July 29, 1897.)

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A'IENT rricn- JESSE BROGAN, OF MESERV-EY, IOW'A.

PNEUMATIC GRAIN-ELEVATOR.

SPECIFICATION formingpart of Letters Patent No. 606,885, dated July 5,1898. Application filed M1529, 1397. Serial No. 646,385. (No model.)

T0 at whom, it may concern:

Be it known that I, JESSE BROGAN, a citizen of the United States,residing at Meservey, in the county of Oerro Gordo and State of Iowa,have invented certain new and use ful Improvements in PneumaticGrain-Elevators; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to pneumatic grainconveyers for threshing-machines;and its object is to provide an improved construction whereby the grainwill be conveyed from the thresher to any convenient receptacle in arapid and efficient manner.

The invention consists in the combination, with a threshing-machine, ofa fan-casing communicating with the grain discharge spout, and a fanoperated from some moving part of the thresher, of the tubeconnectedwith the said casing and leading to some convenient point andprovided near its free end with a tube, in which are located a series ofconical screws, as hereinafter fully described and claimed.

In the accompanying drawings, Figure l is a side elevation of a portionof a threshingmachine with my improvements applied thereto. Fig. 2 is asectional view of the fan and casing on an enlarged scale. Fig. 3 is adetail view, on an enlarged scale, of the elbow.

In the said drawings the reference-numeral 1 designates athreshing-machine of any suitable or ordinary construction and providedwith the usual discharge-spout. (Not shown.) Located in front of saidspout and communieating therewith through an opening 2 is a fancasing 3,provided with a fan 4:, the shaft 5 of which is provided with a pulley6. Passing around said pulley is a belt7, driven from any convenientmoving part of the thresher, for operating the fan. Connected with saidcasing is a vertical pipe 8, secured to the thresher, provided at itsupper end with a coupling 9, in which is swiveled a curved pipe 10,provided with a horizontal extension, to the outer end of which issecured a threeway elbow 12. The portion of said elbow opposite andparallel to the said extension is open to the atmosphere, and locatedtherein are a number of conical screens 13, of wiregauze or othersimilar material. A dischargepipe 14 is connected with the, verticalportion of the elbow.

The operation will be readily understood. The fan is set in motion, andthe grain from the discharge-pipe will be drawn into the fancasing andfrom thence up through the vertical and curved pipes and out through thedischarge-pipe. The conical screws serve to relieve the air-pressu re,yet prevent the grain from escaping therethrough. By swiveling thecurved pipe to the vertical pipe the discharge-pipe may be swung toeither side of the thresher.

Having thus fully described my invention, what I claim is- An attachmentfor a thresher, comprising the fan-casing, the fan and means foroperating the same, the vertical pipe connected with the fan-casing, thecoupling at the upper end thereof, the curved pipe swiveled to saidcoupling, the extension, the three-Way elbow secured to the outer end ofsaid extension, a portion of which is open to the atmosphere, theconical Wire-gauze screens located therein, and the discharge-pipesecured to the vertical portion of the elbow, substantially asdescribed. I

In testimony whereof I affix my signature in presence of two witnesses.

JESSE BROGAN.

WVitnesses:

JOHN QUENDT, F. R. HOPLEY.

